**Échelles des temps géologiques
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Jean Baptiste Clavaud, PhD - Géomatériaux

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For details see "A Geologic Time Scale 2004" by FM. Gradstein, J. G. Ogg, A. G. Smith, et al. (2004) with Cambridge University Press, and the official website of the International Commission on Stratigraphy (ICS) under www.stratigraphy.org

This chart is copyright protected; no reproduction of any parts may take place without written permission by the ICS.

Copyright © 2004 International Commission on Stratigraphy**

**Echelle géologique (moyenne taille)** (173 ko)**Echelle géologique (grande taille)** (214 ko)